Dart - Getters and Setters

Getters and Setters, also called accessors and mutators, allow the program to initialize and retrieve the values of class fields respectively. 

• Getters or accessors are defined using the get keyword.
• Setters or mutators are defined using the set keyword.

A default getter/setter is associated with every class. However, the default ones can be overridden by explicitly defining a setter/getter. A getter has no parameters and returns a value, and the setter has one parameter and does not return a value.

Syntax for Getters and Setters

Defining a Getter

ReturnType get identifier { 
 // statements 
}

Defining a Setter

set identifier(Type value) { 
 // statements 
}

Using Getters and Setters in Dart

Example :

The following example shows how you can use getters and setters in a Dart class:

Output:

Age should be greater than 5
GFG
0

Getters and Setters in Action

Example :

Output:

Is cat hungry? true
Is cat cuddly? false
Feed cat.
Is cat hungry? false
Is cat cuddly? true